grammarly.com

Observed 2026-07-13T00:10:23.241649321+00:00 (7h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byAmazon

Also usesAtlassianDockerDocuSignGoogle Search ConsoleMiroNotionStripe

1 subdomain · push_legacy

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat grammarly.com actually stands on - every host below is a signed observation

grammarly.com

A / AAAA

18.154.227.918.154.227.4018.154.227.3818.154.227.75

Amazonserves the site

ns-1221.awsdns-24.orgns-1588.awsdns-06.co.ukns-422.awsdns-52.comns-835.awsdns-40.net

awsdns-24.org + awsdns-06.co.uk + moreanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more

Google Workspacereceives its email

TLS

www.grammarly.com

Amazonissued its certificate

DNS Records

A 4

18.154.227.9
18.154.227.40
18.154.227.38
18.154.227.75

MX 5

10aspmx.l.google.com
20alt1.aspmx.l.google.com
30alt2.aspmx.l.google.com
40aspmx2.googlemail.com
50aspmx3.googlemail.com

TXT 41

MS=96F5E682E3FF0FBFEF84219A18A34BD963086AA8
MS=ms11892818
_aji9bs0zsnxbc7s3hgopff5i69gdpoa
adobe-idp-site-verification=3e651ed09e9293cf53b3383b231a710750a73dba4666d6053fa650194bb0d153
apple-domain-verification=YmUmlcXeygZ70cqL
atlassian-domain-verification=whH-NvC3ViXrafg4bTERPBlxvBNLVWD0xV5WbI2C9ZtubXKcXRh2sa07+lKL0C/X
cloudflare_dashboard_sso=23b2bdffef1d7658015b6e25e57bccd7
cloudpiercer-verification=b9dab0c22ef96ee3f675f59252321336
cursor-domain-verification-sv7qgx=BEg0YCBYeeYuHLiFNLXfRXpGb
detectify-verification=bd77af0941d04364d951a027120fc676

NS 4

ns-1221.awsdns-24.org
ns-1588.awsdns-06.co.uk
ns-422.awsdns-52.com
ns-835.awsdns-40.net

SOA 1

ns-422.awsdns-52.com awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`www.grammarly.com`	C=US, O=Amazon, CN=Amazon RSA 2048 M01	Wed, 06 Jan 2027 23:59:59 +0000
`Amazon RSA 2048 M01`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:21:28 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +0000

Subdomains (1)

www.grammarly.com

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for grammarly.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/grammarly.com">
  <img src="https://domaindrift.io/badge/grammarly.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for grammarly.com">
</a>

Ed25519 Receipt

Receipt ID: 4db69d9f-f505-43e4-92fc-a7052cdc3ea4
Output Hash: ad30f82d1f94f22576915291b1a07a16bc7136841810e1278e35419f060b32bf
Signature: ed25519:a12b369203e1002f560379489a6402cf040b2f5c137d0641ee78b120b5bf5ea80169bd3b7505acec335b28b2d691d0cc43faa4a86332fbac34810738bc27d306
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/grammarly.com